358

The General Radio 358 Amateur Band Wavemeter was introduced in Bulletin 926 (1924) and remained available through Catalog K1 (1939).

The Type 358 is an absorption-type wavemeter covering the four overlapping bands. It has a frequency accuracy of 1% and uses an incandescent lamp as a resonance indicator. The lamp is in a special socket that closes the connection when the lamp is removed if not needed.

Each wavemeter is supplied with a calibration chart produced with settings accurate for that particular meter.

A Type 247 gear-driven condenser is used inside the meter.

Specifications

• Frequency Ranges
• Wavelength: 14 to 28 Meters, 26 to 56 Meters, 54 to 114 Meters, 105 to 220 Meters
• Frequency: 10.0 to 20.0 MHz, 5.0 to 10.0 Mhz, 2.5 to 5.0 MHz, 1.5 to 3.0 MHz
• Accuracy: 1%

Links

• Experimenter describing Type 358 February 1926
• Experimenter describing the calibration of Type 358 July 1927

Photos

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